It's a different caging machine which adopts advanced structure of foreign country and developed on the basis of suggestion and advice of concrete pipes manufacturers.  It overcome the weakness of shortage of specifacation ( There are only a few diameter specifications for a single machine.), high labor strength, low product efficiency, complicated operational manners, loose welding, high failure rate.  It can produce all kind of reinforced steel cages of flat joint, tongued and grooved joint, bell and spigot joint concrete pipes from diameter from DN300 to DN4000 with length within 4000mm.